TC4 Titanium Alloy Forging Txheej Txheem Thiab Tooling Tsim

Titanium alloy muaj cov khoom zoo heev xws li tsis tshua muaj siab, muaj zog tshwj xeeb, kub tsis kam, corrosion kuj thiab tsis sib nqus, thiab lwm yam. titanium alloy forgings tsis yog tsuas yog siv dav hauv aviation thiab aerospace manufacturing industries, tab sis kuj muaj ntau yam. daim ntawv thov nyob rau hauv marine, tshuaj, automotive kev lag luam thiab cov cuab yeej kho mob. Yog li ntawd, peb xaiv TC4 titanium alloy ua cov khoom siv zoo tshaj plaws rau kev tsim cov phaj txuas no. Forging txheej txheem thiab tooling tsim cov ntsiab lus:

1, xaiv cov khoom siv bar specifications. Los ntawm cov qauv peb-dimensional coj qhov kev ntsuam xyuas hla ntu, nws tuaj yeem pom tau tias forging loj hla ntu yog nyob ntawm ob qho kawg, qhov sib npaug ntawm txoj kab uas hla ntawm φ90mm, qhov seem ntawm qhov sib npaug ntawm txoj kab uas hla ntawm φ68mm, forging. nyob rau hauv qhov ntev kev taw qhia cross-section loj yog kuj uniform. Qhov ntev ntawm forging yog 300mm, raws li peb cov kev paub hauv kev tsim ntau yam zoo sib xws ntawm forgings, qhov ntev ntawm qhov bar yog ze rau qhov loj ntawm forging thiaj li yuav ua tiav ntawm ob-kawg molding, yog li kev xaiv ua ntej. ntawm lub bar ntev ntawm 300mm, thiab ces muab lub ntim ntawm forging los ntawm 1.25 raws li lub ntim ntawm lub bar, lub bar txoj kab uas hla yog xam los ntawm φ80mm, uas pib ua rau cov specification rau cov khoom φ80mm × 300mm.

2, titanium alloy bar npaj. Forging (dov) bar, saum npoo muaj txheej txheej tawv thiab nkig, tuag forging, yuav tsum tau tshem tawm cov txheej, thiaj li tsis ua kom tawg ntawm qhov chaw ntawm lub billet thaum forging. Txoj kab uas hla ntau dua 50mm, feem ntau tig kom tshem tawm 5mm. tig, xws li ib tus neeg qhov chaw tseem tsis zoo, yuav tsum tau polished kom tshem tawm, sib tsoo qhov tob tsis tshaj 0.5 hli. bar kawg ntawm R5 rounded fab, thiaj li tsis txhob tawg ntawm blanks thaum forging.

3, kev xaiv khoom siv. Lub forging quab yuam yog xam raws li 4000t. Titanium alloy thermal conductivity tsawg, chav kub yog txhuas 1/15, hlau 1/5, forging rauj forging titanium alloy ceev ceev thaum lub hauv paus thermal nyhuv yog ib qho yooj yim los tsim overheating tshwm sim, forging kev ua tau zoo dua, thiab deformation. Thaum tshav kub kub generated los ntawm xovxwm tsis pom tseeb. Raws li cov kev cai forging precision thiab qhov teeb meem tiag tiag ntawm kuv cov khoom siv cog, xaiv 5000t siab zog ntsia hlau xovxwm li forging khoom.

4, roj lubrication. Billet preheating kub ntawm 120 ± 30 degree, preheating nyob rau hauv lub preheating cub rau 20min, tusyees sprayed iav lubricant, billet nto lubricant kom qhuav ua ntej loading rauv.

5, cua kub specifications. Raws li tus qauv txiav txim siab TC4 titanium alloy pib forging kub ntawm 960 degree, qhov kawg forging kub ntawm 800 degree, tuav lub sij hawm ntawm 0.8min / mm. Titanium alloy muaj cov thermal conductivity tsawg, txhawm rau tiv thaiv overheating oxidation thiab nqus ntawm hydrogen, lub cub tawg tshiab thiab lub sijhawm ntev tsis siv rau lub sijhawm ntev hauv lub cub tawg yuav tsum npliag ua ntej hlawv kom tshem tawm cov dej noo thiab tom qab ntawd siv lub tshuab ua kom sov. Lub qhov cub kub qhov tseeb qhov tseeb ± 10 degree. Qhov kub yog siab dhau, lub koom haum yog coarsened, cov nplej yog ntxhib; Qhov kub thiab txias tsis dhau, qhov deformation kuj yog loj, yooj yim los tsim cov kab nrib pleb thiab lwm yam forging defects.
6, kev ua lag luam. Lub hom phiaj yog txhawm rau faib cov hlau tsim nyog, cov khoom no yuav tsum tau sib sau ua ke ntawm cov hlau mus rau ob sab thiab xaus ntawm forging, kev tsim cov duab ntawm lub billet yog qhov tseem ceeb rau kev ua ntej forging thiab zaum kawg forging molding nyhuv. Txhawm rau kom tsis txhob muaj qhov deformation ntau dhau los ntawm kev tawg ntawm qhov khoob, qhov deformation ntawm qhov khoob tsawg dua lossis sib npaug li 60%, cov duab ntawm qhov khoob yog tsim raws li hauv daim duab 2.

7, forging pwm kab noj hniav tsim. Thawj qhov hluav taws kub ua kom tiav cov khoom seem thiab pre-forging, qhov thib ob hluav taws ua kom tiav qhov kawg forging thiab precision forging. Tom qab ua ntej forging, txiav ntug, sandblasting, sib tsoo, ntawm ib sab, kom tshem tawm qhov tsis xws luag ntawm forgings, txhim kho qhov zoo ntawm forgings tom qab kawg forging; Ntawm qhov tod tes, txiav ntug tuaj yeem txo cov hlau sib sau ua haujlwm, uas yog qhov tsim nyog rau lub thickness ntawm forgings loj los ua si los ntawm. Kab noj hniav tsim rau plaub kab noj hniav (Daim duab 3): billet (sab laug sab laug) → pre-forging (sab xis sab xis) → kawg forging (sab laug sab) → precision forging (sab laug sab). Lub hom phiaj ntawm kev tsim cov precision forging kab noj hniav yog los txhim kho pwm lub neej thiab forging qhov tseeb. Nyob rau hauv thiaj li yuav tsim tag nrho forging, kuj complex thiab ntxaum kab noj hniav yog muab tso rau hauv lub Upper pwm. Kev tswj deformation: billet pwm phaj thickness tsim rau 21.5 hli, pre-forging phaj thickness tsim loj ntawm 12 hli, qhov kawg forging phaj thickness ntawm 5.2 hli, qhov kawg forging deformation yog ntau tshaj 30%, txwv tsis pub nws yog ib qho yooj yim mus ua rau forging lis. qhov loj me, kev ua haujlwm poob qis. Preheating kub ntawm pwm: 200-300 degree .
8, txiav ntug pwm tsim. Txiav ntug pwm tsim muaj ob kab noj hniav (Daim duab 4), sab xis ntawm pre-forging txiav ntug, txiav ntug kom khaws ib feem ntawm lub ya ntug siv raws li ib tug zaum kawg forging cov khoom, sab laug kab noj hniav rau zaum kawg forging tom qab txiav ntug. kab noj hniav. Yuav kom txiav cov ntug precision, txiav ntug ntawm lub sab sauv thiab qis tuag clearance yog tsim los rau 0.8mm, tus tsim ntawm cov ncej ncej qhia lub tes tsho qauv rau txiav ntug tuag los ua ke thiab positioning thiab tswj lub sab sauv. thiab qis tuag clearance dimensional raug.

9, Forging cua txias thiab kev kho cua sov. Tom qab lub forging yog cua-txias, annealing tshav kub kho yog ua tiav.
10, Kev ua qias tuaj thiab ntxuav ntawm titanium alloy hauv txheej txheem forging. Lub billet yuav tsum tau muab ntxuav ua ntej cua sov, yuav tsum tsis txhob muaj roj, hlau filings, chlorinated khoom, cov ntiv tes tsis pub nyob twj ywm; Lub tshuab hluav taws xob yuav tsum tsis txhob muaj cov tawv nqaij oxidized, yuav tsum tsis muaj steel hlau, hauv qab ntawm lub qhov cub hauv ob sab phlu rau casting stainless hlau zoo li; billet coated nrog iav lubricant, los yog rhuab nyob rau hauv ib tug tiv thaiv cua.